Home / 145,384,495.12-200,631,884.61-79,305,286.96

Finding the Fourth Proportional to 145,384,495.12, 200,631,884.61 and 79,305,286.96

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Solution

The fourth proportional to 145,384,495.12, 200,631,884.61 and 79,305,286.96 is: 109,441,994.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,384,495.12 : 200,631,884.61 = 79,305,286.96 : x
  2. Step 2: Convert to fraction form
    145,384,495.12/200,631,884.61 = 79,305,286.96/x
  3. Step 3: Cross multiply
    145,384,495.12x = 200,631,884.61 × 79,305,286.96
  4. Step 4: Simplify right side
    145,384,495.12x = 15,911,169,182,321,658
  5. Step 5: Solve for x
    x = 15,911,169,182,321,658/145,384,495.12
  6. Step 6: Final answer
    x = 109,441,994.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.